无法在 mocha 单元测试中导入接口

如何解决无法在 mocha 单元测试中导入接口

我正在一个文件中定义和导出一个接口，但无法在 mocha 的测试用例中导入它。我收到了 Cannot use import statement outside a module。我试图在 package.json 中添加 "type" : "module" 但没有帮助。

你知道我缺少什么吗？

预先感谢您的帮助。

ReadonlyArray.ts

export interface ImmutableList<T> {
    readonly [n: number]: T;
}

product.test.ts

import {ImmutableList} from "../../../Utils/ReadonlyArray";
const assert = require('assert');
const expect = require('chai').expect;
const should = require('chai').should();
describe('',() => {
    it('',() => {
        const array = [1,2,3];
        let rdArray: ImmutableList<number> = [];
        for (let item of array){
            console.log(item);
        }
    });
});

package.json

{
  "name": "wsep","version": "1.0.0","description": "","main": "index.js","type": "module","scripts": {
    "test": "tsc test/product.test.ts -o test/product.test.js && mocha test/product.test.js --require ts-node/register test/product.test.js"
  },"keywords": [],"author": "","license": "ISC","dependencies": {
    "simplr-logger": "^1.0.1"
  },"devDependencies": {
    "@types/mocha": "^8.2.2","@types/node": "^14.14.37","chai": "^4.3.4","mocha": "^8.3.2"
  }
}

tsconfig.json

{
  "compilerOptions": {
    "target": "es6","module": "commonjs","baseUrl": "./","outDir": "./build","declaration": true,"removeComments": true,"emitDecoratorMetadata": true,"skipLibCheck": true,"resolveJsonModule": true,"experimentalDecorators": true,"sourceMap": true,"allowJs": true,"incremental": true
  },"exclude": ["node_modules","build"]
}